柔性直流输电系统的能耗测量方案研究

Research on Energy Consumption Measurement Scheme of Flexible DC Transmission System

为评估柔性直流输电系统各能耗设备及系统整体损耗,提出一种用于柔性直流输电系统的能耗测量方案。该方案通过对柔性直流输电系统各个设备特征曲线拟合建立了其损耗的理论计算模型。然后结合经济性和谐波影响因素,给出能耗测量点的优选方案。最后,根据误差传递原理分析了测量设备的准确度等级要求。

In order to evaluate the overall loss of each energy consumption equipment and system in the flexible DC transmission system,an energy consumption measurement scheme is proposed for flexible DC transmission system.The theoretical calculation model of the loss is established by fitting the characteristic curves corresponding to the equipments in the flexible DC transmission system.Then,combining with the influence factors of economic efficiency and harmonic wave,the optimum scheme for energy consumption measurement points is given.Finally,the requirements for accuracy grades of measuring equipments are analyzed based on the principle of error propagation.